Spindle



(No Model.) W. T. CARROLL.

Spindle.

Patented |Viay'31,4 1881.

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llNrrnn STATES PATENT Ormes.

WILLIAM T. CARROLL, OF WORCESTER, ASSIGNOR TO GEORGE DRAPER 8a SONS, OFHOPEDALE, MASSACHUSETTS.

l SPINDLE.

SPECIFICATION forming part of Letters Patent No. 242,409, dated May 31,1881. Application filed January 24, 1881. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM T. CARROLL, of Worcester, lllorcestercounty, State of Massachusetts, have invented an Improvement inSpindles, of which the following description, in connection with theaccompanying drawings, is a specification.

My invention in spindles has for its object to enable the spindle andits y'arn load, under all circumstances, to find andy revolve abouttheir true and' common center of gravity, to thus overcome thedifficulties attendant upon or incident to vibration of the spindle byreason of an unequal distribution of Weight or balancing of the yarnload thereon, whereby the spin- 'dle is adapted Ato be run at a greaterspeed with less power and produce better yarn than 1s possible when thespindle runs in fixed or unyieldin g bearings and is unevenly loaded.A

Prior to this my invention' spindles have been constructed such asrepresented in United States Patents to J. S. Raworth, No. 226,789,April 20, 1880, and No. 227,129 to F. J .Rabbeth, to which reference maybe had, wherein it was aimed to accomplish the advantages' hereindesired to be attained by means of an elastic medium external to thebearings in which the spindle turns. In the Rabbeth constructionreferred to thelower end of thespindle, below its connection with thewhirl, is eX- tended down into a loose bolster-bearing inserted in atube connected with and extended upward from a iixed rail of thespinningframe, an elastic packing being interposed between the saidbearing and tube.

In this my invention, instead of employing` a tube such as shown :in thesaid Rabbeth patent, down over and about which the whirlconneeted withthe spindle is extended, and placing the bolster-bearing in the saidtube, so as to receive in its open upper end the lower end of thespindle, I extend a bearing stud or pin upward from the center of afoot-piece sustained in a fixed rail of the machine, and above this studor pin, which is long enough to extend above the plane in which thewhirl connected with the spindle revolves, I have` placed abolster-bearing, shown as an open-ended sleeve fitted over the said studor pin. The

upper end of the said stud or pin, above the top of the saidbolster-bearing, will preferably have a rawhide, bone, metal, or someother wcll-known orsuitable h ard washer interposed between it and thetop of the chamber of the whirl. This bolster-bearing is providedexternally with a suitable yielding or elastic covering or medium, suchas felt, or yarn, or a woven or braided fabric, the said elastic mediumoperating as a cushion between the outer portion of the bolster-bearingand the interior of the whirl-sleeve, thus enabling the spindletoreadily yield in all directions with more or less of a spring-action.The elastic cushion is herein shown located below the top of the stud orpin upon which the weight of the spindle and yarn load is sustained, andabout which the Whirlsleeve of the spindle revolves, and the center ofthe whirl falls opposite the center of the bolster-bearing', so that thepull of the band driving the spindle will not tend to deflect thespindle from true vertical position, as it otherwise would do ifdiierently located with relation tothe said bearing.

Besides overcoming the gyration ofthe spindle resulting from an unevenbalancing of the spindle and its yarn load, to securethebest resultsprovision must be made to overcome the lateral strain on the spindle dueto the pull of the yarn as it passes from the usual traveler to thebobbin during the rise and fall of the ring-rail-a strain which isespecially noticeable in spindles as now constructed when the ringrailwith its ring and traveler are at the upper part of their traverse.

The spindle, its supporting stud or pin, bolster-bearing, and elasticsupport herein described as of my invention have been devised withespecial aim to overcome or reduce to the minimum the evil effects ofthe strain arising from the pull of the yarn when the rin g-rail is nearthe top of its traverse, and this I have accomplished by changing theleverage of the spindle, placing' the whirl below the support for theweight of the spindle, and locating the elast-ic support andbolster-bearing intermediate between the whirlsleeve and the saidspindlc-support, the whirl being just opposite the center of thebolster-bearing.

By this construction and location of parts, as referred to, I am enabledto use a softer or less-dense elastic medium than has been foundabsolutely necessary in that class of spindles wherein the elasticlateral support is located above that bearing of the spindle whichsupports its weight, for in such spindles the elastic support, to bemost e'ectual, must be equivalent almost to a solid surface. The lessthe density of the elastic lateral support the greater the ease withwhich the spindle may move to find its true center of gravity; and bychanging the leverage of the spindle, as herein shown, I am enabled touse a very soft cushion between the sleeve-whirl and bolster, one sosoft that it could not practically be employed in a spindle of the classreferred to, where the increased lateral strain ot' the yarn on thebobbin and spindle near the top of the traverse acts with very muchgreater power than when the spindle is supported as shown in this myinvention, and where the spindle proper heretofore extended into thewhirl-sleeve is omitted.

The location of the yielding cushion or lateral support, to compensatefor unequal loading of the spindle or bobbin inside the whirl in theline of the pull of the band driving the said whirl and below the pointon which the spindle and its load rest and revolve, enables me to rotatethe spindle with the greatest steadiness and with the minimum of wearaud of power.

Figure 1 represents, in side elevation and partial section, a spindleembodying my invention, it being supposed that the same is to be used ina rin g-spinnin g frame having a rising and fallin g rin g-rail and ringand traveler, such as made by the Sawyer Spindle Company, such framesbeing well known. Fig. 2 is a vertical sectional detail of thebolster-bearing and its elastic covering medium. Fi g. 3 is a detail ofthe interior of the foot-piece with the central fixed stud or pin brokenoi'; and Fig. 4 is a modification to be referred to, the spindle andwhirlsleeve being broken of above the whirl, the said figure being addedonly to show a modified, but usual, form of device for holdingthespindle down in proper position.

The rail a will beV supposed to be the usual bolster-rail common toring-spinning frames made by the Sawyer Spindle Company and itslicensees. The foot-piece b, having a shank, b', to t ahole in the saidrail, where it will be held in any suitable manner, has its upperportion chambered out, as shown at Figs. 1 and 3, to receive the lowerend of the whirl-sleeve c and of the bolster-bearin g d, while at itseenter the said foot-piece b has a iixcd stud or pi n, c, extendedupward, as shown in Fig. 1, to receive about it the said bolster-bearing, and outside of it the whirl-sleeve, the said stud or pin extendingupward above the line of pull of the usual driving-band on the whirl j',thus forming an extended, stili', stationary, unyielding center, aboutwhich, above and below the whirl f, the whirl-sleeve c revolves,carrying with it the spindle s, with which it is fixedly connected abovethe top of the said stud or pin c.

The bolster-bearin g d, herein shown as a sleeve open at both ends andas covered externally with an elastic cushion, g, ot' felt, woven orbraided fabric, yarn, or other suitable yielding or spring material, orof metal wire, as in Fig. S of United States Patent No. 227,129,referred to, is placed about the said fixed pin or stud c, the latterextending through the top of the bolster, as in Fig. l.

Above the top of the stud or pin c, which top serves as the support forthe wei ghtof the spindle, its attached parts, and yarn-load, I haveherein shown a loose washer, h, of rawhide, but it maybe ot' steel,glass, or other vitreous or suitable material commonly used for hardbearin gs. The chambered whirl-sleeve c, connected at top directly withthe lower end of the spindle s, and fitted over this bolsterbearin g andelastic cushion thereon, is made to rest on the said washer h if it beused, or on the upper end of the stud or pin c if the washer be omitted,and the lower end ot the said whirl-sleeve is entered loosely, as hereinshown, within the chambered portion of the foot-rest b, it, however,ruiming freely therein. The length ofthe stud or pin e, and ot` thebolster-bearin g, will be substantially the same, and the whirl will beso placed on the whirlsleeve as to travel opposite the center of thestud or pin e and bolster-bearing, as shown in the drawings.

The lower end of the whirl-sleeve is shown as provided with a pin, k, toenter an annular groove, l, in the foot-piece b, to prevent the spindlerising from its seat or the top of the stud or pin or washer when abobbin is being doifed from the spindle.

The portion of the foot-rest b above the annular groove I, is cutdiagonally downward in the direction of the rotation ot' the spindle, asat m, to aiiord entrance for the pin k into the groove I, and yetprevent any accidental lifting of the spindle, as might happen if thecut m were vertical and it should be attempted to dof the bobbin at atime when the pin k and said vertical cut were in exact line vertically.Instead of this pin k and annular grooveV l, I may employ aturn-buttonor wire, j, (shown in Fig. 4,) itbeingadevicc shown in United StatesPatent No. 227,129 for the same purpose.

1 do not lay claim to any particular form of devices to hold the spindledown in proper position, nor do 1 desire to confine my invention to theemployment of any especial means for lubricating the parts which run incontact.

I have shown in Fig. 1 an oil-hole, 2, made through the whirlsleeve,ii1side the hollow upper part of the whirl, and oil fed therein will iowalong the elastic or yielding cushion down into the chamber at the upperend of the footrest.

rllhe stud or pin e may be grooved sprally, as in Fig. 1, to form achannel for the upward IOO IOC

movement of oil from the chamber of the footrest, between the said stude and the interiorV of the bolster-bearing, and out through the holes 3to the elastic cushion g or the bolsterbearing may be grooved spirally,as at 5, Fig. 2, and be bored as at 6; or, it' desired, thebolster-bearing may have one or more vertical sawcuts through it, asshown in heavy black line 7, Fig. 2.

In the Rabbeth patent referred to the spindle extends below the whirland the connection ofthe whirl-sleeve with it; but in this my improvedconstruction the spindle terminates at its connection with thewhirl-sleeve, and the stationary stud or pin e takes the place of thelower part of the spindle ot' the said Rabbeth structure, to opppose andsustain the pull ofthe driving-band on the whirl.

I claiml. The tiXed stud or pin and its surrounding bolster-bearing andelastic covering, combined with the spindle, its connected whirl andwhirl-sleeve, the latter surrounding and being adapted to be revolvedabout the said stud or pin, with the bolster-bearing intermediatebetween them, substantially as described.

whirl-sleeve secured to the lower end of the spindle, and the whirl onthe said sleeve, combined with a fixed stud or support on which the saidspindle rests and revolves above the whirl, and abolster-bearing andelastic cushion interposed between the said whirl-sleeve and stud orspindle support, substantially as described.

3. The fixed stud or pin, its surrounding bolster-bearing and elasticcovering, and the spindle, and connected whirl-sleeve extended downabout the said bolster-bearing and stud or pin, combined with the loosewasher intermediate between the upper end of the said stud or pin andthetop of the chalnbered whirlsleeve, substantially as described.

In testimony whereof Ihave signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM T. CARROLL.

Witnesses:

J oHN E. SULLIVAN, JOSEPH K. GREENE.

